Defines the basic "core" interfaces and classes for Jabber™ Stream Objects (JSO). The "core" consists of Packet (and its derivaties) and Extension element sets, and their "factory" definitions. This package also defines the XML stream interface, and its factory.

Use of this package (and the "subpackages") is through {@link org.jabberstudio.jso.JSOImplementation}. This abstract class provides a common entry-point to creating many of the other types in this package.

@author linuxwolf @version 0.13-DEV-20050624155226 @since JSO-0.2